It's all true!
The reason why in recent years the British constitution has been altered beyond recognition-- abolishing the ancient and honorable hereditary lords, undoing the Union of 1707 that was the guarantee against Jacobite invasions from the north, and the carving up of the duties of the even more ancient and honorable office of Lord Chancellor-- is that there was a crypto-papist in 10 Downing Street!
Conspiracy theorists of the world, know your moment of triumph. We now have clear proof that, if you let your guard down for even a moment, 200 or so years later your prophecies will all come true.